Lead singer and bassist of the band Level 42. King is known for his slap style of playing the bass guitar, with MusicRadar describing him as "the guy who put the slap in pop during the 80s".
King received a BASCA Gold Badge Award in October 2015 in recognition of his contribution to British music. He won the "Outer Limits" award at the 2017 Progressive Music Awards.
He is the elder brother of fellow Level 42 member Nathan King and Boon Gould, also of Level 42, lived in Gleneldon Road, Streatham.